Modified low-resistance tire rubber compound and preparation method thereof

Abstract

The invention discloses a modified low-resistance tire rubber compound and a preparation method thereof. The modified low-resistance tire rubber compound comprises, by weight, 50-60 parts of natural rubber SIR20, 5-6 parts of butadiene styrene rubber, 5-6 parts of chloroprene rubber, 8-10 parts of N234 carbon black, 7-8 parts of white carbon black, 1-2 parts of a silane coupling agent X50S, 2-3 parts of polyethylene glycol, 2-3 parts of toluene diisocyanate, 2-3 parts of a tin salt catalyst, 1-2 parts of hydroxy-terminated polybutadiene, 3-4 parts of a softening plasticizer aromatic oil, 2-3 parts of stearic acid, 3-4 parts of an antioxidant, 1-2 parts of tackifier 204 resin, 1-2 parts of a homogenizing agent UB4000, 1-2 parts of sulfur, 1-2 parts of a promoter TBBS and 0.3-0.5 parts of an anti-scorching agent CTP. The preparation method improves the compatibility between rubber and water-absorbent resin and improves the strength of the rubber compound. Carbon black is partially substituted by the white carbon black, so the rolling resistance of a tire is reduced, and oil consumption reduction, exhaust gas discharge reduction and environmental protection are achieved. The modified low-resistance tire rubber compound has the advantages of strong adhesion between laminated rubbers, good dispersion and good thermo-oxidative aging resistance.

Description

technical field [0001] The invention belongs to the field of rubber tire manufacturing, and in particular relates to a modified low-resistance tire rubber compound and a manufacturing method thereof. Background technique [0002] The rubber compound is made by mixing and mixing raw materials such as carbon black, natural rubber or synthetic rubber, and additives. As the main processing object and carrier in the tire manufacturing process, the proportion of rubber in the rubber compound usually reaches about half. Chemical substances such as additives can be used to change the physical properties of rubber such as strength, plasticity, elasticity, and durability. All the semi-finished rubber parts on the tire, such as tread, sidewall and apex, etc., are processed from the rubber compound in the subsequent manufacturing process. [0003] Green tires are the strategic direction for the development of the global tire industry. Many countries have put forward higher requirement...

AI Technical Summary

Problems solved by technology

Currently using furnace carbon black, such as N234, N115, etc., although the wear resistance meets the requirements, but the heat generation is high, which cannot meet the requirements of low rolling resistance tires

There are many shortcomings in the production and use of the current tire compound formula: uneven dispersion of carbon black and small materials, poor adhesion with the transition layer, and easy to appear bubbles when laminating

The performance of polymer blends is often reduced due to poor compatibility, high interfacial energy between the two phases, and low interfacial binding force

Images